
When he was paid a visit by Sauron's people asking about the One Ring, he immediately spoke with Elrond and started preparing for war. Wise and thoughtful, he made sure to keep an alliance with the Men of Dale and the Elves living in Mirkwood. Afterwards, he led an army of Dwarves at the Battle of Five Armies before he was crowned king under the Mountain. He slayed an Orc chieftain when he was only in his 30s (he lived into his 250s) and went on to keep his people from perishing at the hands of the Balrog lumbering around Moria.

What Does He Do In The Books: Dáin's life may be the most straightforward and classic sword and sorcery tale in all of J.R.R. The Dwarves and Elves then join forces in conflict, changing Middle-earth for the better. Initially, he and his men fight with the Elves on the scene before turning to absolutely slay a bunch of Orcs that show up. Who Is He In The Hobbit: Dáin Ironfoot has a super-cool entrance in The Battle of the Five Armies when he leads an army of Dwarves into Erebor while riding a giant, armored boar. In The Return of the King, he's crowned king of Rohan by a dying Théoden before joining up with Aragorn to fight Sauron at the Black Gate of Mordor while Frodo destroys the One Ring. After Gandalf zaps the spell away, Éomer is set free and leads his men to victory at the Battle of Helm's Deep. He's then imprisoned by King Théoden, who's under the spell of Wormtongue. He saves Merry and Pippin from a group of Uruk-hai before giving Aragorn, Gimli, and Legolas horses and supplies to further their push towards Mordor. What Does He Do In The Books: As far as side characters go, Éomer is pretty dang busy in The Two Towers and The Return of the King.

He then whomps a bunch of Orcs at the Battle of the Pelennor Fields. Gandalf senses his importance and calls him to Helm's Deep to regain his former glory. The first time the audience meets Éomer, he's been exiled by Wormtongue and is living a pretty crusty life. Who Is He In The Lord of the Rings: Peter Jackson plays fast and loose with Éomer in his adaptation, likely due to narrative reasons and time restraints.
